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BYD COMPANY LIMITED
Document Installation Manual and User Manual for BYD Project No. \
Code 2M SOP0007540 Edition 13 Page 1 / 19
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Installation Manual and User Manual for
BYD Photovoltaic Modules
BYD COMPANY LIMITED.
ADD: Yan An Road, Kuichong,
Longgang, 518119 Shenzhen,
PEOPLE'S REPUBLIC OF
CHINA
TEL:+86-755-8988 8888
FAX:+86-755-8420 2222
www.byd.com.cn
tel:+86-755-8988http://www.byd.com.cn/
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BYD COMPANY LIMITED
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CONTENT
Foreword .................................................................................................................................................................................................................................................... 3
1. Product identification .......................................................................................................................................................................................................................... 3
1.1 Label .............................................................................................................................................................................................................................................................. 3
1.2 Barcode ......................................................................................................................................................................................................................................................... 3
2. Transportation and storage manual ................................................................................................................................................................................................. 4
3. Installation ............................................................................................................................................................................................................................................. 4
3.1 Warning ......................................................................................................................................................................................................................................................... 4
3.2 Mechanical installation ............................................................................................................................................................................................................................... 6
3.2.1 Mounting system .................................................................................................................................................................................................................................. 6
3.2.2 Clamping ............................................................................................................................................................................................................................................... 8
3.2.3 Insertion system ................................................................................................................................................................................................................................. 10
3.3 Electric installation..................................................................................................................................................................................................................................... 12
3.3.1 Grounding............................................................................................................................................................................................................................................ 12
3.3.2 General Installation ............................................................................................................................................................................................................................ 13
4. Maintenance and Care ....................................................................................................................................................................................................................... 16
4.1General Maintenance................................................................................................................................................................................................................................. 16
4.2 Module Cleaning ........................................................................................................................................................................................................................................ 16
5.Claim ................................................................................................................................................................................................................................................... 18
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Foreword
This manual describes the transportation, installation and
maintenance of PV modules (hereafter referred to as “module”). Please
read this manual carefully before installing and using the modules.
Please get in touch with the provider if you have any questions.
This manual applies to all the standard modules of BYD Company
Limited.
Keep this guide in a safe place for future reference (care and
maintenance) and in case of sale or disposal of the modules.
NOTE: All statements in this manual refer to our 3 or 4bus-bar
polycrystalline cell PV modules .The illustrations in this manual,
which show 2 or 3 bus-bar cell PV modules, are only used for
reference purposes.
1. Product identification
1.1 Label
The label shows the product type, rated power, rated current, rated
voltage, open circuit voltage, short circuit current, weight, dimensions
etc.;
1.2 Barcode
Each module has only one bar code as shown below:
FIG.1 Bar code
SH 130701 P630 ASEC 001
SH——Manufacturer location, SH:Shanghai; SA:South Africa
SL:Shangluo; TS:Tangshan Haitai; VN:Vietnam; RX:Ruixin;
BR:Brazil; RD:Runda; GL:Guolong
( Dingxinsheng ) ;ST:Santaicheng; CA : Cambodia
ENALEX CB:Cambodia Shenglong
130701——Date(YYMMDD);
P——P for Poly -Si, M for Mono-Si; L for Mono-like
6——6 for the cell dimension of 156*156,5 for the cell dimension
of 125*125mm, 7 for the cell dimension of 156.75*156.75; H for the cell
dimension of 156.75*78.375mm;8 for the cell dimension of
158.75*158.75mm; I for the cell dimension of 158.75*79.375mm
30——the voltage of the modules;
ASEC- ——Engineering Code ,for different shifts, materials etc;
001——Number of product components,3 digit sequence 0 to 999
for sequential production starting on each new day of production at 001.
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2. Transportation and storage manual
Please observe the following criteria after packing:
(1) Don’t tilt the packing boxes for more than 15° during handing.
(2)Please follow the instruction labels “up” and “down” during
placing the packing boxes and avoid placing them upside down during
transit.
(3)Be careful while handing the boxes during transit, and avoid
heavy pressure or jolting of the boxes.
(4)The packing boxes should be protected from rain.
(5)Transportation conditions should conform to the requirements of
the packing boxes and of the modules regarding their environmental
conditions.
3. Installation
3.1 Warning
(1) Do not use mirrors or other magnifiers to artificially concentrate
sunlight on the module.
(2) Do not touch the connectors with bare hands and use insulated
tools during electrical work.
(3) Although the glass surface of the modules is rather durable and
able to withstand pressure, the glass might break (and the module will
no longer work properly), if it is dropped or hit by tools or other heavy
objects.
(4) Under certain conditions, the module might produce a higher
electric current and/or voltage than measured under standard test
conditions. Accordingly, the values of Isc and Voc marked on this module
should be multiplied by 1.25 when determining the component voltage
ratings, conductor current ratings, fuse sizes and size of controls
relating to the PV output.
(5) The installation work of the PV array can only be done under
the protection of sun-sheltering covers or sunshades, and only qualified
persons should install modules or perform maintenance work.
(6) Systems should be installed by qualified personnel only and at
least by two persons. The system involves electricity and can be
dangerous if the personnel are not familiar with the appropriate safety
procedures.
(7) Follow the recommendations of the battery manufacturer if
batteries are used with the modules. Please observe national and local
laws and regulations when installing modules. If required, an
architecture license should be obtained before carrying out this work.
(8) Please unpack carefully.
(9) A visual inspection should be carried out before installation, in
order to make sure that there is no defect in the packing, the junction
box or on the surface of module.
(10)The user should design and select a metallic bracket for
installing that is suitable to bear the weight of the PV modules. The
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brackets should be selected by the user according to their destined
places of installation, such as open land or a rooftop. For safety
reasons, all brackets should be grounded. In order to insure good
conductivity, electroplated brackets should be used.
(11)As a general rule, PV modules should be installed in a location
where they will receive maximum sunlight throughout the year. In the
Northern Hemisphere, the modules should typically face south, and in
the Southern Hemisphere, the modules should typically face north.
When choosing a site, avoid trees, buildings or other obstructions,
which might block the sunrays. When selecting a clamping or insertion
system, appropriate anticorrosive brackets should be selected
according to the specification of the module.
(12) Put the modules on the frame and tighten the screws after
putting on the underlying washers. Don't cover the drain holes with
other components when installing the modules. The junction box should
be placed at the top of the module in order to facilitate correct
positioning of ventilation holes.
(13)Don’t grasp the junction box or cables during the installation
process.
(14) In case of installing the module on a roof top, the roof top
should be made fire-resistant first. Do not use modules near equipment
or in places where flammable gases may be generated.
(15)In case of roof top installation, the PV array should fulfill the
requirements regarding fire resistance of the norm IEC 61730-2.
(16)The ambient temperature range at the location of installation
should not exceed -40°C ~+85°C.
(17) Do not connect/disconnect modules during load connection.
(18) If the modules are installed on the roof, the whole system
mounting should be installed around 20CM away from the roof. The
recommended standoff height is 20 cm. The PV array installation slope
should more than 5in/ft (127mm/305 mm) when modules are installed in
rooftop. The module is in a minimum fire resistance rating of Class C,
and the fire rating of this module is valid only when mounted in the
manner specified in the mechanical mounting instructions.
(19) If the component is installed on the roof, the structure must
have a high bearing capacity, common roof structure such as color
steel roofs, cement flat roofs, the glazed tile roof, etc.
(20) If the modules have the area of the salt crystals which exceed
5% of the modules on façade then should clean it up. We advice that
the modules should cleanly at every turn.
(21) We suggested that the height of the module from the ground is
not less than 60cm, in order to prevent the hot –spot caused by the
weeds.
(22) Modules should be stored in a dry and ventilated environment
to avoid direct sunlight and moisture. If modules are stored in an
uncontrolled environment, the storage time should be less than 3
months and extra precautions should be taken to prevent connectors
from being exposed to moisture or sunlight, like using connector end
caps.
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DANGER: One single module may generate more than 30V DC
when its front is exposed to direct sunlight. If modules are
connected in series, the total voltage is equal to the sum of the
partial voltages of each module .A nominal open voltage or maximum system
voltage of 45 V or more may cause an electric shock, exist in the conspicuous
position of a module connection part. Therefore direct contact should be
avoided after installing a greater number of modules in series or parallel, in
order to avoid electric shocks.
CAUTION: Please unpack the module in an appropriate
environment, and use special tools. The modules need to be
kept water-proof and damp-proof.
NOTE: BYD does not limit the materials of the installation as
long as they can be used outdoors for at least 25 years
3.2 Mechanical installation
3.2.1 Mounting system
Use screws put through the mounting holes according to the
following figure for fixing the module,If all mounting holes are used, a
load of 3600Pa for frontal, a load of 1600Pa for back(IEC61215 2016
safety factor 1.5).
Description of the mounting holes:
FIG.2 P6K/M6K series models
FIG.3 PHL series models
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FIG.4 PHK/MHK/MIK/PIK series models
TAB.1 The size of each code
measure L W T A B C
Model
BYDxxxP6K-18 1482 676 50/40/35 626/628 802/482 566
BYDxxxM6K-18
BYDxxxP6K-24 1325 992 50/40/35 942 476 1076
BYDxxxP6K-27 1482 992 50/40/35 942 500 1100
BYDxxxP6K-30 1640 992 50/40/35 942 860 1360
BYDxxxM6K-30
BYDxxxP6K-30 1645 992 45/40/35 942 860 1360
BYDxxxM6K-30
BYDxxxPHK-30 1669 992 50/40/35 942 860 1360
BYDxxxMHK-30
BYDxxxP6K-36 1956 992 50/40/35 942 800 1300
BYDxxxM6K-36
BYDxxxP6K-36 1962 992 45/40/35 942 800 1300
BYDxxxM6K-36
BYDxxxPHK-36 1992 992 50/40/35 942 800 1300
BYDxxxMHK-36
BYDxxxPHL-36 1948 1002 50/40/35 972 800 1300
BYDxxxMIC/K-36 2008 1002 40 952 800 1300
BYDxxxPIC/K-36
Remark: “K” denotes 1500V system Voltage of module, “L” denotes 1500V
system Voltage of half-cell transverse module.
TAB.2 The size of each code
measure
D H
Model Mechanical load
test(Front))
Mechanical load
test(Back)
BYDxxxP6C/K-36 400 950 2400Pa 2400Pa
BYDxxxM6C/K-36
BYDxxxPHC/K-36 400 950 2400Pa 2400Pa
BYDxxxMHC/K-36
Remark: A load of 1600Pa for frontal, a load of 1600Pa for back(IEC61215
2016 safety factor 1.5).
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TAB.3 The size of each code
measure
L W T C
Model
Mechanical
load test
(Front))
Mechanical load
test(Back)
BYDxxxPIC/K-36 2008 1002 35 1300 3600Pa 2400Pa
BYDxxxMIC/K-36
BYDxxxPIC/K-39 2166 998 35 1300 3600Pa 2400Pa
BYDxxxMIC/K-39
Remark: A load of 2400Pa for frontal, a load of 1600Pa for back(IEC61215
2016 safety factor 1.5).
During installation of the modules it should be made sure, that all
mounting holes are used for fixation, the number of mounting holes for
each module series is indicated in the table below:
TAB.4 Number of mounting holes for each series of components
Model
measure n
Model
measure n
BYDxxxP6C/K-18 4
BYDxxxP6C/K-36
8
BYDxxxM6C/K-18 BYDxxxM6C/K-36
BYDxxxP6C/K-24
8
BYDxxxPHC/K-36
BYDxxxP6C/K-27 BYDxxxMHC/K-36
BYDxxxP6C/K-30 BYDxxxMIC/K-36
BYDxxxM6C/K-30 BYDxxxPIC/K-39
BYDxxxPHC/K-30 BYDxxxMIC/K-39
BYDxxxMHC/K-30
BYDxxxPIC/K-30
BYDxxxMIC/K-30
Installation details:
FIG.5 Diagram of pressure installation under 3600Pa(IEC61215
2016 safety factor 1.5)
1) Aluminum Frame
2) M8 Stainless Bolt M8
3) Flat Stainless Washer
4) Spring Stainless Washer
5) HEX Stainless Nut
3.2.2 Clamping
For clamping of the modules, clamps can be used as in the figure
below, while the clamps must be strong enough to fasten the modules
(the use of stainless steel is recommended), and their structure must
not cover the cells. A load of 3600Pa for frontal, a load of 1600Pa for
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back(IEC61215 2016 safety factor 1.5).
If a module is installed with clamps on a long side of the frame, “B”
denotes the possible clamping range:
FIG. 6 Installation diagram of four fixtures under pressure of
3600Pa(IEC61215 2016 safety factor 1.5).
TAB.5 The dimensions corresponding to fixture installation
Model
Measure
A
Measure
B
BYDxxxP6K-18 120 250
BYDxxxM6K-18
BYDxxxP6K-24 110 250
BYDxxxP6K-27 120 250
BYDxxxP6C/K-30(L=1640) 140 250
BYDxxxM6C/K-30(L=1640)
BYDxxxP6C/K-30(L=1650) 145 250
BYDxxxM6C/K-30(L=1645) 142.5 250
BYDxxxP6C/K-30(L=1645)
BYDxxxPHC/K-30 (L=1669) 158 250
BYDxxxMHC/K-30 (L=1669)
BYDxxxPHC/K-30(L=1658) 149 250
BYDxxxMHC/K-30(L=1658)
BYDxxxPIC/K-30(1684) 162 250
BYDxxxMIC/K-30(1684) 162 250
BYDxxxP6C/K-36(L=1956) 328 250
BYDxxxM6C/K-36(L=1956)
BYDxxxP6C/K-36(L=1962) 331 250
BYDxxxM6C/K-36(L=1962)
BYDxxxPHC/K-36(L=1992) 346 250
BYDxxxMHC/K-36(L=1992)
BYDxxxPHC/K-36(L=1978) 339 250
BYDxxxMHC/K-36(L=1978)
BYDxxxPIC/K-36(2008) 354 250
BYDxxxMIC/K-36(2008) 354 250
BYDxxxPIC/K-39(L=2166) 433 250
BYDxxxMIC/K-39(L=2166) 433 250
Remark: “A” denotes the distance from the clamp to the edge of the module,
while “B” denotes the possible clamping range.
Installation method:
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FIG. 7 Schematic diagram of long side pressing block
We advise users to use an installation method as shown in the two
pictures above, as this method renders modules connection rather fast.
Installation method with clamping on the short side of the frame as
below:
FIG. 8 Schematic diagram of four clamps under pressure of
1600Pa(IEC61215 2016 safety factor 1.5)
Installation method:
FIG. 9 Schematic diagram of short side pressing block
Notice: If customer choose Installation method with clamping on
the short side of the frame, you should customize the length of
the electric cable for us.
3.2.3 Insertion system
For the modules to follow an insertion system as depicted below
can be used for installation. The insertion system must have enough
strength to fix modules, and can be made of materials such as stainless
steel and other appropriate metals for solid support of the PV modules.
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FIG. 10 Installation diagram of long side guide rail under pressure
of 3600Pa(IEC61215 2016 safety factor 1.5)
FIG. 11 Guide rail installation diagram
During the installation on the long side of the frame you need to
take care that the cells on the front side and that the grounding holes on
the back side don t́ get covered. Please refer to the detailed illustration
below for installation on the long side of the frame:
FIG. 12 Guide rail installation diagram
FIG. 13 The front cannot block the PV
plate and the back cannot block the grounding hole
The installation mode of the half-cell intermediate outgoing module is
recommended the long edge to be parallel the ground; The installation
mode of the half-cell long edge outgoing module is recommended the
short edge to be parallel the ground.
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All the mounting ways above are suitable to roof mounting. And the
module is considered to be in compliance with IEC61215 when the
module is mounted in the manner specified by the mounting instruction
above.
Tab 4. List of mounting modes with border thickness
Thickness
Installation
50mm 45mm 40mm 35mm 30mm
Refer
Long side bolt
√ √ √ √ √
FIG.2
FIG.3
FIG.4
FIG.5
Long side
press √ √ √ √ √
FIG.6
FIG.7
Long side rail
√ √ √ √ √
FIG.10
FIG.12
FIG.13
Short side √ √ √ × × FIG.8
press FIG.9
Short side rail
√ √ √ × ×
FIG.11
FIG.12
FIG.13
Note: √: Indicates compliance with load bearing installation requirements; X: indicates that the load bearing installation
requirements are not met
3.3 Electric installation
3.3.1 Grounding
(1) Grounding: For safety reason, all module frames should be
prepared for grounding. It is not recommended to use modules with
different configurations (grounding, wiring) in the same system. The
connecting areas between the materials of the frame and the grounding
should not cause galvanic corrosion.
(2)Regarding grounding and bonding requirements, please refer to
regional and national safety and electricity standards. If grounding is
required, use a recommended connector type, or an equivalent, for the
grounding wire. The grounding wire must be properly fastened to the
module frame to assure adequate electrical connection.
(3) There are many possible methods for grounding. The main point
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is to ensure the resulting safety. We recommend one method as
sketched below:
FIG. 14 Ground diagram
(4) All module frames should be grounded for safety. All materials
for grounding connections between modules must be approved by a
qualified electrician and also, the grounding itself must be done by a
qualified electrician. The ground wire should have at least the same
size as the electrical conductors(10-12 AWG exposed copper wire with
a minimum of 90°C is recommended).
(5)In order to avoid potential induced degradation(PID),BYD
insists that the negative electrode of the inverter should be grounded.
CAUTION: BYD modules provide the mounting holes, drain
holes and grounding holes. That has passed the safety testing.
Installers can’t drill and block drain holes at random.
3.3.2 General Installation
(1)The module was rated for use in the A application class which
follows the items referred in IEC 61730-1.When the modules in a PV
system are connected in series or parallel generally, we recommend
simple methods of connecting them in series or parallel as shown
below:
Series connection of modules:
Parallel connection of modules:
(2) The bypass diode should have a Rated Average Forward
Current at least 10A, and a Rated Repetitive Peak Reverse Voltage of
at least 40V.The diode types are as below:
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Type Maximum DC Blocking Voltage Maximum Average Forward Current
20SQ045 45V 20A
10SQ050 50V 10A
GF2045MG 45V 20A
SDA2040 40V 20A
(3) The cable must not be bent or crushed on the direct exit of
the cable screw joint include connecter and box. A minimum
bending radius R≥4×cable diameter must be maintained. The
cable must be routed in a way that tensile stress on the conductor
or connections is prevented. The pictures are as below:
According to the system voltage (1500V) of the IEC standard.
Under normal conditions, a PV module is likely to experience conditions
that produce more current/voltage than reported at STC. Accordingly,
Isc and Voc must be multiplied by 1.25 (for C-Si or non-C-Si) we
recommend the maximum number of series connected modules for
each module series as stated below:
Type The maximum number of
modules in series
BYDxxxP6C-18/P6K-18 ≤51
BYDxxxP6C-24/P6K-24 ≤39
BYDxxxP6C-27/P6K-27 ≤34
BYDxxxP6C-30/P6K-30 ≤31
BYDxxxM6C-30/M6K-30 ≤30
BYDxxxP6C-36/P6K-36 ≤26
BYDxxxM6C-36/M6K-36 ≤24
BYDxxxPIC-30/PIK-30 ≤25
BYDxxxMIC-30M/IK-30 ≤22
BYDxxxPHC-30/PHK-30 ≤31
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BYDxxxPHC-36/PHK-36 ≤26
BYDxxxMHC-30/MHK-30 ≤30
BYDxxxMHC-36/MHK-36 ≤25
BYDxxxMIC-36/MIK-36 ≤20
BYDxxxMIC-39/MIK-39 ≤20
BYDxxxPIC-36/PIK-39 ≤20
And the electrical characteristics are within +/- 10% of the indicated
values of Isc, Voc, Pmax under STC.
Additionally, there is an equation for calculating the modules
amount in one string. It also depends on the system voltage and the
lowest temperature in latest 40 years. The equation is below,
1 25oc systemN V T V
Here:N---means the module’s amount;
Voc---means the module’s voltage under STC;
β---means the voltage temperature coefficient;
T---means the lowest environment temperature in latest 40
years;
Vsystem---means the system voltage of the module.
(4)For parallel connection, the current will be added up and the
used connectors will be limited by the number of parallel connection.
We recommended the maximum number of modules is 3. The fuse
protection needs to be determined as well.
(5)To prevent the cables and the connectors from overheating, the
cross section of the cables and the capacity of the connectors must be
selected to suit the maximum system short circuit current. Please note
that the upper limit temperature of cable is 90°C and that of the
connector is as follows:
Connector Type The upper limit temperature
PV-TS02(1500V) 100℃
PV-ZH202B(1500V) 100℃
(6)There is no general limitation on the number of parallel
connected modules but the number of modules is determined by
system design parameters such as current or power output. Every PV
array in parallel should install a protection circuit.
(7) Please refer to local laws and regulations to determine the
system wires size, type and temperature. To prevent the cables and the
connectors from overheating, the cross section of the cables and the
capacity of the connectors must be selected to suit the maximum
system short circuit current (the recommended cable cross section is
4mm2 for a single module or a rated current of the connectors of more
than 10A). Our module’s maximum fuse rating current is 20A.
NOTE: Please note that the upper temperature limit is 90°C for
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cable and 100°C for the connectors. We demand the connection must be
matching BYD’s, otherwise BYD don’t responsible for anything about
performance problem caused by your action.
4. Maintenance and Care
4.1General Maintenance
The following inspections of the modules should be carried out in
regular intervals:
(1) Regularly check the mechanical installation of the module.
Check the support equipment for fastness and symptoms of corrosion
or other damages. Check bolts and nuts for loosening, especially the
places with exposure to hard winds or at times of jolting. Ensure that the
fixing is fast and fasten immediately in places with some looseness. If
conditions permit the metal fittings that fasten or support the modules,
such as the bolts and nuts, should be protected from corrosion. A firs
inspection should be carried out 12 months after installation and
inspections every 10 years thereafter.
(2)Regularly check the electric wiring of the modules for reliable
connection to the components of the equipment and the grounding
system. Check regularly, if the value of the grounding resistance is still
reaching the designated requirement, If connections are not fast, fasten
them by soldering. After a thunderstorm or before the start of the stormy
season check the convergence box and the lightning protection
systems installed inside the equipment for loss of function and change
them immediately if necessary.
(3)Check cables, connectors and joints for current leakages and
deal with it, in order to prevent leakage currents caused by rainy or
snowy weather when checking the wiring, people must take insulation
equipment (such as tools and gloves etc,) with them and avoid touching
the bare parts of connectors or joints with bare hand, Check the system
for loosen parts of the connectors and fasten where necessary to
ensure good contact. Wipe the dust from the equipment regularly to
keep it clean.
(4) If the module appears in need of repair, the surface of the
module should be covered with fabric or other material. There is a
danger of high voltage, if the sun ray directly hit the module.
CAUTION: If you come across loose connectors, please
contact Supplier or Maintenance and let them carry out
maintenance and care.
4.2 Module Cleaning
Excess dirt and dust accumulating on the glass surface of the
module can reduce its power output. Therefore BYD recommends
periodic cleaning of PV modules especially during times when the
modules do not have the expected power output. The cleaning process
must be implemented after the PV modules are disconnected and
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cooled, and after cleaning PV modules must ensure dry ,next it are
connected. Non-professional authorized personnel are not allowed to
clean modules, and make sure they have appropriate safety equipment
for aerial work and the risk consciousness of high altitude work. Please
check the glass surface of the module for cracks and damages before
cleaning. If there are already cracks on the module, please do not clean
but inform the installer or maintenance service provider. Do not wear
metal accessories like a watch or jewelry during cleaning PV modules,
avoid the broken of modules.
4.2.1 Module Cleaning Condition
The cleaning works of PV module should be carried out at morning,
evening, overcast sky or irradiance less than 200W/m2. The use of cold
water to clean a PV module heated up sunshine might cause cracks in
the glass cover of the module, so strictly forbidden proceed cleaning
work during the noon or a strong period of sunlight.
4.2.2 Module Cleaning Method
Module cleaning method divided into general clean and washing
clean.
1. General Clean
(1) To the attachment which can easy to clean like dry dust, leaves
on the PV module surface, cleaner can use dry and professional mop or
soft cloth to clean.
(2) To the attachment which are not easy to clean like mud, birds
droppings, sticky stuff on the PV module surface, cleaner can use
scraper or gauze to wipe, but avoid using hard material, to prevent
destroy glass surface. Use cleaning effect to judge whether clean or
not.
2. Washing Clean
(1) To the inorganic compound like wet dust which are not easy to
clean on the PV modules surface, cleaner can carry out general clean
(2) first, then use clean water which pressure less than 500KPa to
washing, finally, use clean gauze wipe the waterlogging. To avoid cell
micro crack or module broken, cleaner must attention the water
pressure should not too large.
(2) To the organic like animal corpse (such as mosquitoes and
flies), dung or plant sap which are closely attach to the glass surface,
cleaner can carry out general clean (2) first, then use clean water which
pressure less than 5MPa to washing meanwhile match up professional
cleaner like soft soap water or neutral disinfectant (such like alcohol,
glass cleaner and so on) to clean this part alone, pay attention to avoid
use strong chemical or grinding cleaner and disinfectant (like laundry
detergent, alkaline detergent, cleanser essence, etc.). When it is
necessary to use the soft sponge or cotton but can't wipe the
components or apply gravity on the component.
3. Matters Attention
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(1) It is forbidden to use bareness fingers or hand without gloves
touch or deal with modules glass surface. Use clean gloves can avoid
fingerprint or other dirt stay on the glass.
(2) It is forbidden to use metal tools like knife, blade, cleaning wire
or other grind material.
(3) It is forbidden to use grind powder, grind detergent, polished
machine, sodium hydroxide, benzene, nitro diluent, acid, alkali and
other chemical material.
(4) It is not suggested to use water which contain much mineral
substance, for the mineral substance will deposit on the glass surface
when the water evaporate.
(5) If it is necessary to clean the snow to improve the power output,
please use brush clean the snow gently. But don’t try to clean the
freeze snow or ice.
4.2.3 Security Management
1. Before module cleaning, staff should check whether there are
records of abnormal output in the monitoring recording, analysis
whether caused by leakage current or not, and check whether exist
damage or sticky on the modules’ connection and related electrical
components. There should use test pencil to check modules’ frame,
support, tempering glass surface, to eliminate leakage potential, ensure
personal safety.
2. There are many sharp corner on modules frame and support,
cleaner should wear appropriate protective clothing and wear helmets
to avoid causing injury. It is necessary to prohibit the emergence of
hook, belt, threads, and other components that are easy to cause
obstruction in clothing or tools.
3. It is forbidden to tread PV modules, guide rail support, cable tray
or any other PV system equipment or any way force on modules and
support.
4. It is forbidden to use hard and sharp tools or corrode solvent or
organic solvent wipe module, it is forbidden to spray the cleaning water
to the module junction box, cable tray, combiner box and so on. To
avoid module micro crack, cleaner must attention the cleaning
equipment’s pressure which should be controlled in a range.
5. It is forbidden to clean modules in windy, heavy rain,
thunderstorms, heavy snow. Avoid rinse in winter, to prevent freeze in
low temperature cause dirty accumulate; at the same time, don’t use
cold water rinse when module surface hot.
6. When cleaning, staff are forbidden stand at distance less than 1
meter from the roof edge. Tools and sundries are not allowed to be
thrown down, bring back after work.
5.Claim
As the adherence to this manual and the conditions or methods of
installation, operation, use and maintenance of photovoltaic (PV)
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19
products are beyond BYD’s control. BYD does not accept responsibility
and expressly disclaims liability for any loss, damage, or expense
arising out of or in any way connected with incorrect installation,
operation, use or maintenance.
The information in this manual is based on BYD’s knowledge and
experience and is believed to be reliable. This manual provides
reference only, and consumers are free to choose an appropriate way
of installation according to place and environment.
BYD reserves the right to change the manuals, PV products,
specifications and product information sheets without prior notice.
NOTE: A note provides information about installation,
operation, or maintenance of the module that is important
to know, but it is not necessarily hazardous.
CAUTION: A caution message indicates a potential threat to
minor injury, or alerts against behavior that can lead to
property damage.
DANGER: A danger message indicates a hazard in the
immediate area which, if not avoided, can result in death or
serious injury.
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